This may seem self-evident, but I'll say it anyway...the more time you put into sketching and drawing, the quicker you will improve. Of course there are other factors, like having good instruction, but I and other drawing teachers believe that pencil (or pen) mileage is the most important one. The best way to draw often is to carry a sketchbook with you wherever you go. This way you will always be ready when the inspiration strikes, and instead of thinking 'gosh, I'd love to draw that', you open your handy sketchbook and start sketching. To maximize convenience, I recommned having several sketchbooks of varied sizes, so that depending on where you're going when you leave home, you can grab the one that's most appropriate. For small sizes, I love the
Moleskine sketchbooks, and for larger sizes I use the
Canson spiral-bound sketchbooks. Have fun out there, and don't forget your sunscreen!